Hi I got Sony vaio VPCEH2M9E. Model No: PCG-71911m.
There is no link for the bios download on the manufacturer website. I have been searching for it but could not find any link. I went through insyde unlock section and there was no single matching to my bios version at the end am submitting a humble request.
The Bios verios is R1080z9. I am attaching screen shot of the BIOS

Regardssss
..............
scholars teach in universities and claim that they're smart and cunning
tell them find a cure when we sneeze and that's when their nose start running

thanks again for your reply, Got my usb yday and was just able to made a bootable usb after 10hr labour haha. Now I am searching what are the commands to run flashit.exe what to type. I think there should be a tutorial or sticky because I found many noobs including me find it difficult what and how to work out this utility